Journal
ZOOLOGICA SCRIPTA
Volume 34, Issue 2, Pages 157-175Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1463-6409.2005.00180.x
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A phylogenetic hypothesis based on 107 morphological characters is proposed for a data set of 43 taxa. Thirty-three are extant and belong to the orders Zeiformes (20 taxa), Caproiformes (2), Tetraodontiformes (2), Beryciformes (3), Stephanobervciformes (3) and Perciformes (3). Ten are fossil taxa previously assigned to the Zeiformes (3), Caproiformes (1), Tetraodontiformes (2), Perciformes (1), and to two extinct Eocene families, the Sorbinipercidae (2) and the Zorzinichthydae (1). This analysis indicates the existence of a previously undocumented clade formed by the families Sorbinipercidae + Zorzinichthyidae that may be related to the tetraodontiforms. It also shows that two uppermost Palaeocene species, Archaeozeus skamolensis and Protozeus kuehnei, sequentially represent the two most basal lineages of zeiforms, whereas the most ancient known zeiform, the Upper Cretaceous Cretazeus rinaldii, belongs within the clade of extant species in a polytomy with many other zeiform lineages. A reduced data set of 25 mostly zeiform taxa, after the removal of most outgroups, shows at least weak support for Cretazeus being nested deeply within the extant zeiforms; such a placement would indicate that at least six lineages of zeiforms were present during the Upper Cretaceous, and survived the Cretaceous/Tertiary (K/T) extinction to radiate in Cenozoic seas.
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